Patents by Inventor Juan Paulo Fung

Juan Paulo Fung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Duty cycle detector with hysteresis
    Patent number: 7705648
    Abstract: A circuit for monitoring a PWM signal and providing an output indicating a condition of the PWM signal. The circuit also uses condition based hysteresis to maintain an output value at a previous state until the condition of the PWM signal has remained unchanged for a given duration. In addition, the circuitry may be used in conjunction with a switching regulator to reduce switching noise during high duty cycle operation.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: April 27, 2010
    Assignee: National Semiconductor Corporation
    Inventor: Juan Paulo Fung